[Letux-kernel] ingenic-pinctrl (Memory freeze and timing CI20)

[Zhou Yanjie]

Hi Nikolaus, Paul,

Attachments are the new Pinctrl patches based on kernel 5.12-rc1. And is 
there any feedback about the cache driver?

Thanks and best regards!


On 2021/2/28 上午2:03, Zhou Yanjie wrote:
> Hi,
>
> On 2021/2/27 下午6:41, H. Nikolaus Schaller wrote:
>> Hi,
>>
>>> Am 27.02.2021 um 07:03 schrieb Zhou Yanjie <zhouyanjie at wanyeetech.com>:
>>>> I tried to figure out what has been adjusted but it is difficult to 
>>>> tell... At least it is not obvious :)
>>>
>>> The main change is to adjust the order of ID to make it more in line 
>>> with the order of the birth of the chip, and adjust the order of 
>>> corresponding conditional judgments to unify the code style.
>> Ok, no functional change.
>>
>>>
>>>>> Could you help test it? I don't have JZ4730 hardware at hand.
>>>> Sure. I have reverted the jz470 pinctrl patches from the letux-5.11 
>>>> tree and added yours and could not identify a functional difference 
>>>> so far.
>>>>
>>>> I can boot. SD card is working, LCD is working, I2C is generally 
>>>> working, keyboard scanning works, LEDs are blinking etc. and
>>>> these were the most problematic components which rely on pinctrl.
>>>>
>>>> And I have checked by adding a printk() to probe that my device 
>>>> really runs the new driver...
>>>
>>> Nice to hear it, thanks for your test.
>> You are welcome!
>>
>>>> and
>>>>
>>>> https://git.goldelico.com/?p=letux-kernel.git;a=commit;h=15b615f8ac53ea118bc2c728d2d4ef778bc35550 
>>>>
>>>
>>> This has not been included in the patch.
>> Paul Cercueil made me aware that the no-lcds pinmux is not needed. I 
>> think he has submitted someting similar for a different JZ47xx.
>
>
> Yes, he told me that he is trying to provide mainline kernel support 
> for JZ4760 and JZ4760B.
>
> And, have you encountered this problem in kernel 5.11:
>
> [0.102102] BUG: Bad rss-counter state mm: (ptrval) type:MM_ANONPAGES 
> val:1
>
> It seems that it only started appearing in kernel 5.11.
>
>
>>> I have found that the pinctrl code in the next tree has new changes 
>>> compared to kernel 5.11. I am going to make a new patch after kernel 
>>> 5.12-rc1 comes out, and I will add it to the new patch.
>> Fine. If schedule is as usual, we just have to wait less than 48 hours.
>>
>>> Sure, I plan to submit the first version next week.
>> Great. I'll add the posted version to our Letux tree and it will be 
>> auto-squeezed when it arrives upstream through v5.13-rc1.
>>
>> BR and thanks,
>> Nikolaus
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